公开(公告)号：US08064546B2

公开(公告)日：2011-11-22

申请号：US12139814

申请日：2008-06-16

申请人： Jing Jiang ,  Tarik Muharemovic ,  Pierre Bertrand

发明人： Jing Jiang ,  Tarik Muharemovic ,  Pierre Bertrand

IPC分类号： H04L27/06 ,  H04L1/02

CPC分类号： H04B1/59

摘要： This invention is a method for preamble detection with estimation of UE timing advance (TA) and channel quality information (CQI) which uses a sliding window to detect the preamble and estimate user timing advance and channel quality information. The window length is set to the cyclic prefix length of data transmission. A preamble detection threshold is computed semi-analytically according to noise sample statistics.

摘要翻译： 本发明是一种用于使用滑动窗口来检测前导码并估计用户定时提前和信道质量信息的UE定时提前（TA）和信道质量信息（CQI）的估计的前导码检测方法。 窗口长度设置为数据传输的循环前缀长度。 根据噪声样本统计，半解析地计算前导码检测阈值。

公开(公告)号：US20100329194A1

公开(公告)日：2010-12-30

申请号：US12502493

申请日：2009-07-14

申请人： Zukang Shen ,  Tarik Muharemovic ,  Timothy Schmidl

发明人： Zukang Shen ,  Tarik Muharemovic ,  Timothy Schmidl

IPC分类号： H04W4/00

CPC分类号： H04L1/1621 ,  H04L1/1614 ,  H04L1/1671 ,  H04L1/1692 ,  H04L1/1829

摘要： This invention is a transmission scheme for multi-ACK/NAK and SRI in TDD. The described scheme enables using DAI as pure counter. QPSK is adopted as the modulation scheme in this invention which guarantees satisfactory detection performance. Link level simulations show that the event of one DL grant pass followed by three consecutive DL grant misses is of low probability.

摘要翻译： 本发明是TDD中的多ACK / NAK和SRI的传输方案。 所描述的方案使得能够使用DAI作为纯计数器。 采用QPSK作为本发明的调制方案，其保证了令人满意的检测性能。 链路级别仿真表明，一个DL授权通过的事件随后是三个连续的DL授权丢失的概率很低。

公开(公告)号：US20100272006A1

公开(公告)日：2010-10-28

申请号：US12683291

申请日：2010-01-06

申请人： Pierre Bertrand ,  Zukang Shen ,  Eko N. Onggosanusi ,  Sandeep Bhadra ,  Anthony Ekpenyong ,  Tarik Muharemovic

发明人： Pierre Bertrand ,  Zukang Shen ,  Eko N. Onggosanusi ,  Sandeep Bhadra ,  Anthony Ekpenyong ,  Tarik Muharemovic

IPC分类号： H04J3/08

CPC分类号： H04B7/2606

摘要： This invention extends the coverage and improves the capacity of wireless communication networks using relay nodes. The relay nodes are wirelessly connected to the base station. The base station uses the same radio access technology for a link between the base station and user equipment and between the base station and the relay node. The relay node uses the same radio access technology for a link between the base station and the relay node and between the relay node and the user equipment. The relay node supports at least a Physical Layer (PHY), a Medium Access Control (MAC) sub-layer and a Radio Link Control (RLC) sub-layer protocol.

摘要翻译： 本发明扩展了覆盖范围，并提高了使用中继节点的无线通信网络的容量。 中继节点与基站无线连接。 基站对基站和用户设备之间以及基站和中继节点之间的链路使用相同的无线电接入技术。 中继节点对于基站和中继节点之间以及中继节点和用户设备之间的链路使用相同的无线电接入技术。 中继节点至少支持物理层（PHY），媒体接入控制（MAC）子层和无线链路控制（RLC）子层协议。

公开(公告)号：US20100157937A1

公开(公告)日：2010-06-24

申请号：US12716737

申请日：2010-03-03

申请人： Tarik Muharemovic ,  Aris Papasakellariou

发明人： Tarik Muharemovic ,  Aris Papasakellariou

IPC分类号： H04W72/12

CPC分类号： H04L5/0007 ,  H04L5/0016 ,  H04L5/0039 ,  H04L5/0053 ,  H04L47/10

摘要： A method for multiplexing reference signal (RS) transmissions from user equipments (UEs), with the RS having a bandwidth larger than the data signal bandwidth (distributed RS) is provided. A transmission time interval (TTI) comprises of one or more sub-frames and each sub-frame comprises of at least two RS transmission periods and a plurality of data signal transmission periods. A distributed RS is transmitted during at least one of the at least two RS transmission periods in at least one of the sub-frames comprising the TTI. During the remaining RS transmission periods, for a UE having a data signal transmission, the RS bandwidth is substantially the same as the data signal bandwidth (localized RS). The total system bandwidth is divided into contiguous, non-overlapping sub-bandwidths, called reference signal multiplexing blocks (RSMBs). Transmission of distributed RS occurs within an RSMB and does not cross over different RSMBs. The size and number of RSMBs can be re-configurable in time and a re-configuration period is much larger than the TTI duration.

公开(公告)号：US20100157936A1

公开(公告)日：2010-06-24

申请号：US12716715

申请日：2010-03-03

申请人： Tarik Muharemovic ,  Aris Papasakellariou

发明人： Tarik Muharemovic ,  Aris Papasakellariou

IPC分类号： H04W72/04 ,  H04W72/12

CPC分类号： H04L5/0007 ,  H04L5/0016 ,  H04L5/0039 ,  H04L5/0053 ,  H04L47/10

摘要： A method for multiplexing reference signal (RS) transmissions from user equipments (UEs), with the RS having a bandwidth larger than the data signal bandwidth (distributed RS) is provided. A transmission time interval (TTI) comprises of one or more sub-frames and each sub-frame comprises of at least two RS transmission periods and a plurality of data signal transmission periods. A distributed RS is transmitted during at least one of the at least two RS transmission periods in at least one of the sub-frames comprising the TTI. During the remaining RS transmission periods, for a UE having a data signal transmission, the RS bandwidth is substantially the same as the data signal bandwidth (localized RS). The total system bandwidth is divided into contiguous, non-overlapping sub-bandwidths, called reference signal multiplexing blocks (RSMBs). Transmission of distributed RS occurs within an RSMB and does not cross over different RSMBs. The size and number of RSMBs can be re-configurable in time and a re-configuration period is much larger than the TTI duration.

摘要翻译： 提供了一种用于从用户设备（UE）复用参考信号（RS）传输的方法，其中RS具有大于数据信号带宽（分布式RS）的带宽。 传输时间间隔（TTI）包括一个或多个子帧，每个子帧包括至少两个RS传输周期和多个数据信号传输周期。 在包括TTI的子帧中的至少一个子帧中的至少两个RS传输周期中的至少一个期间，发送分布式RS。 在剩余的RS传输周期期间，对于具有数据信号传输的UE，RS带宽与数据信号带宽（本地化RS）基本相同。 总系统带宽被划分为连续的非重叠子带宽，称为参考信号复用块（RSMB）。 分布式RS的传输发生在RSMB内，不会跨越不同的RSMB。 RSMB的大小和数量可以在时间上重新配置，重新配置周期远远大于TTI持续时间。

公开(公告)号：US07675888B2

公开(公告)日：2010-03-09

申请号：US11531586

申请日：2006-09-13

申请人： Cory S. Modlin ,  Tarik Muharemovic

发明人： Cory S. Modlin ,  Tarik Muharemovic

IPC分类号： H04B7/216 ,  H04W4/00 ,  H04B7/208 ,  H04J11/00

CPC分类号： H04L5/023 ,  H04J3/0682

摘要： A method for Orthogonal Frequency Division Multiplexing Access (OFDMA) ranging is provided. The method includes receiving a signal having OFDMA symbols. An FFT is performed on this signal. Matching ranging codes are found. The power for a given hypothesized ranging code is determined and compared to a power threshold to determine if the code was transmitted. The timing offset and power are reported as the result of ranging.

摘要翻译： 提供了一种用于正交频分复用接入（OFDMA）测距的方法。 该方法包括接收具有OFDMA符号的信号。 对该信号执行FFT。 找到匹配的测距代码。 确定给定假设测距码的功率并将其与功率阈值进行比较，以确定代码是否被发送。 定时偏移和功率作为测距结果报告。

公开(公告)号：US20090040919A1

公开(公告)日：2009-02-12

申请号：US12185531

申请日：2008-08-04

申请人： Tarik Muharemovic ,  Zukang Shen ,  Jing Jiang

发明人： Tarik Muharemovic ,  Zukang Shen ,  Jing Jiang

IPC分类号： H04J11/00

CPC分类号： H04L27/2602 ,  H04L5/0044 ,  H04L5/0048

摘要： A transmission of information within a wireless cellular network may include a first and second group of samples. A first group of samples is created comprising at least a first and a last subgroup, wherein the last subgroup is same as the first subgroup. A second group of samples created. A transformed set of samples produced by jointly transforming the created first and second group with a discrete Fourier transform (DFT). The transformed set of samples is expanded to produce an expanded set, and the expanded set is transformed with an inverse discrete Fourier transform (IDFT) to produce an OFDM symbol with a fractional payload. The first group of samples is a reference signal (RS), which is known to the receiver before the transmission occurs, while the second group of samples is information data.

摘要翻译： 无线蜂窝网络内的信息传输可以包括第一和第二组样本。 创建包括至少第一和最后一个子组的第一组样本，其中最后一个子组与第一个子组相同。 第二组样本创建。 通过用离散傅立叶变换（DFT）联合变换所创建的第一组和第二组而产生的经变换的样本组。 经变换的样本集合被扩展以产生扩展集合，并且利用逆离散傅里叶变换（IDFT）来变换扩展集合以产生具有小数有效载荷的OFDM符号。 第一组样本是参考信号（RS），其在传输发生之前是接收机已知的，而第二组样本是信息数据。

公开(公告)号：US20080316957A1

公开(公告)日：2008-12-25

申请号：US12136221

申请日：2008-06-10

申请人： Zukang SHEN ,  Tarik MUHAREMOVIC ,  Pierre Bertrand

发明人： Zukang SHEN ,  Tarik MUHAREMOVIC ,  Pierre Bertrand

IPC分类号： H04Q7/00 ,  H04L27/28

CPC分类号： H04L27/2613 ,  H04J13/00 ,  H04J13/16 ,  H04L5/0007 ,  H04L5/0053

摘要： A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations. The transmission from the secondary to primary node in a wireless network is obtained using a first and a second sequence. Embodiments of the present invention mitigate interference by restricting the choice of the first sequence. Thus, in an embodiment of the invention, the first sequence is selected from a set of M sequences wherein M is strictly less than N. In order to accommodate high—velocity users, the restricted set contains a pair of sequences whose element—wise product is mirror symmetric. In other embodiments of the invention, the choices of the first sequence and second sequence in a time-frequency resource is arranged such that interference is mitigated. A transmission component for K-th logical time duration is obtained from the entire second sequence and K-th element of the first sequence.

摘要翻译： 信息从次级到主节点的传输发生在多个N个逻辑时间段内。 使用第一和第二序列获得从无线网络中的次级到主节点的传输。 本发明的实施例通过限制第一序列的选择来减轻干扰。 因此，在本发明的一个实施例中，第一序列选自M个严格小于N的M序列集合。为了适应高速用户，受限集合包含一对序列，其元素乘积 是镜像对称的。 在本发明的其他实施例中，时间 - 频率资源中的第一序列和第二序列的选择被布置成使得可以减轻干扰。 从第一序列的整个第二序列和第K个元素获得用于第K个逻辑持续时间的传输分量。

公开(公告)号：US20080298488A1

公开(公告)日：2008-12-04

申请号：US12129378

申请日：2008-05-29

申请人： Zukang Shen ,  Tarik Muharemovic ,  Pierre Bertrand

发明人： Zukang Shen ,  Tarik Muharemovic ,  Pierre Bertrand

IPC分类号： H04L27/28

CPC分类号： H04W72/0406

摘要： A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations. The transmission from the secondary to primary node in a wireless network is obtained using a first and a second sequence. Embodiments of the present invention mitigate interference by restricting the choice of the first sequence. Thus, in an embodiment of the invention, the first sequence is selected from a set of M sequences wherein M is strictly less than N. In order to accommodate high—velocity users, the restricted set contains a pair of sequences whose element—wise product is mirror symmetric. A transmission component for K-th logical time duration is obtained from the entire second sequence and K-th element of the first sequence.

摘要翻译： 信息从次级到主节点的传输发生在多个N个逻辑时间段内。 使用第一和第二序列获得从无线网络中的次级到主节点的传输。 本发明的实施例通过限制第一序列的选择来减轻干扰。 因此，在本发明的一个实施例中，第一序列选自M个严格小于N的M序列集合。为了适应高速用户，受限集合包含一对序列，其元素乘积 是镜像对称的。 从第一序列的整个第二序列和第K个元素获得用于第K个逻辑持续时间的传输分量。

公开(公告)号：US07450672B2

公开(公告)日：2008-11-11

申请号：US11246618

申请日：2005-10-07

申请人： Alan Gatherer ,  Tarik Muharemovic ,  Everest W. Huang ,  Srinath Hosur

发明人： Alan Gatherer ,  Tarik Muharemovic ,  Everest W. Huang ,  Srinath Hosur

IPC分类号： H04B7/10

CPC分类号： H04L1/06 ,  H04L1/005 ,  H04L1/0066 ,  H04L1/0071 ,  H04L1/0618

摘要： An apparatus and method for transmitting and receiving a bit stream. On the transmission side, coded bits (Y.sub.t) and an interleaved version of the coded bits (X.sub.t) are separately modulated and transmitted. On the reception side, a priori output probabilities produced by a probability generator (34) are combined (112) and then input to a SISO decoder (111). Combined a posteriori output probabilities (115) produced by the SISO decoder are split (113) and then fed back to the probability generator.

摘要翻译： 一种用于发送和接收比特流的装置和方法。 在发送侧，分别调制和发送编码比特（Y.sub.t）和编码比特（X.sub.t）的交织版本。 在接收侧，组合由概率发生器（34）产生的先验输出概率（112），然后输入到SISO解码器（111）。 组合由SISO解码器产生的后验输出概率（115）被分离（113），然后反馈给概率发生器。